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https://www.readbyqxmd.com/read/28912534/multisegmented-nanowires-a-step-towards-the-control-of-the-domain-wall-configuration
#1
E Berganza, M Jaafar, C Bran, J A Fernández-Roldán, O Chubykalo-Fesenko, M Vázquez, A Asenjo
Cylindrical nanowires synthesized by controlled electrodeposition constitute excellent strategic candidates to engineer magnetic domain configurations. In this work, multisegmented CoNi/Ni nanowires are synthesized for tailoring a periodic magnetic structure determined by the balance between magnetocrystalline and magnetostatic energies. High-resolution Transmission Electron Microscopy confirms the segmented growth and the sharp transition between layers. Although both CoNi and Ni segments have similar fcc cubic crystal symmetry, their magnetic configuration is quite different as experimentally revealed by Magnetic Force Microscopy (MFM) imaging...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28815757/first-line-treatment-selection-and-early-monitoring-patterns-in-chronic-phase-chronic-myeloid-leukemia-in-routine-clinical-practice-simplicity
#2
Stuart L Goldberg, Jorge Cortes, Carlo Gambacorti-Passerini, Rüdiger Hehlmann, H Jean Khoury, Mauricette Michallet, Ron Paquette, Bengt Simonsson, Teresa Zyczynski, Aimee Foreman, Elisabetta Abruzzese, David Andorsky, Aart Beeker, Pascale Cony-Makhoul, Richard Hansen, Elza Lomaia, Eduardo Olavarria, Michael Mauro
Achieving successful outcomes in chronic phase-chronic myeloid leukemia (CP-CML) requires careful monitoring of cytogenetic/molecular responses (CyR/MR). SIMPLICITY (NCT01244750) is an observational study exploring tyrosine kinase inhibitor use and management patterns in patients with CP-CML receiving first-line imatinib (n=416), dasatinib (n=418) or nilotinib (n=408) in the US and 6 European countries in routine clinical practice. Twelve-month follow-up data of 1,242 prospective patients (enrolled October 01 2010-September 02 2015) are reported...
August 17, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28782788/nanostructured-coo-nio-coni-anodes-with-tunable-morphology-for-high-performance-lithium-ion-batteries
#3
Huan Liu, Xinlu Wang, Hang Xu, Wensheng Yu, Xiangting Dong, Ying Yang, Hongbo Zhang, Jinxian Wang
Nanostructured CoO/NiO/CoNi composites as anode materials for lithium-ion batteries (LIBs) have been successfully prepared by a facile, straightforward, and large-scale dealloying method. The effects of NaOH solution concentration on the structure, morphology and electrochemical performances of the resulting products are studied systematically. These results indicate that the concentration of NaOH solution mainly influences the morphology of the CoO/NiO/CoNi composites. Cyclic voltammetry (CV) and charge-discharge tests have been conducted to assess the lithium storage performances of the CoO/NiO/CoNi anodes obtained from the 5 M NaOH solution...
August 22, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28708418/vaccines-pesticides-and-narratives-of-exposure-and-evidence
#4
Elena Conis
This essay considers the cultural work performed by two public health narratives - the DDT narrative and the vaccine narrative - as they appeared in popular and professional discourse concerning two recent media events: controversy over an antivaccination film, and the emergence of a Zika global public health emergency. Like all narratives in the history of medicine, the stories historians and others tell about DDT and about vaccines organize a shared past to explain the present. They also point to a hoped-for future...
July 14, 2017: Canadian Bulletin of Medical History, Bulletin Canadien D'histoire de la Médecine
https://www.readbyqxmd.com/read/28662332/magnetic-propulsion-of-recyclable-catalytic-nanocleaners-for-pollutant-degradation
#5
José García-Torres, Albert Serrà, Pietro Tierno, Xavier Alcobé, Elisa Vallés
Electrochemically fabricated magnetic mesoporous CoNi@Pt nanorods are excellent nanomotors with controlled magnetic propulsion and excellent catalytic properties. The core-shell structure allows a double functionality: (i) controlled motion of the nanorods by applying rotating magnetic fields at different frequencies and field strengths and (ii) effective catalytic activity of the platinum shell for reactions involving sodium borohydride. The structure and magnetic properties of the CoNi core are not modified by the presence of the Pt shell...
July 19, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28582615/iron-induced-activation-of-ordered-mesoporous-nickel-cobalt-oxide-electrocatalyst-for-the-oxygen-evolution-reaction
#6
Xiaohui Deng, Secil Öztürk, Claudia Weidenthaler, Harun Tüysüz
Herein, ordered mesoporous nickel cobalt oxides prepared by the nanocasting route are reported as highly active oxygen evolution reaction (OER) catalysts. By using the ordered mesoporous structure as a model system and afterward elevating the optimal catalysts composition, it is shown that, with a simple electrochemical activation step, the performance of nickel cobalt oxide can be significantly enhanced. The electrochemical impedance spectroscopy results indicated that charge transfer resistance increases for Co3O4 spinel after an activation process, while this value drops for NiO and especially for CoNi mixed oxide significantly, which confirms the improvement of oxygen evolution kinetics...
June 15, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28429760/corrigendum-selective-targeting-of-hdac1-2-elicits-anticancer-effects-through-gli1-acetylation-in-preclinical-models-of-shh-medulloblastoma
#7
Sonia Coni, Anna Barbara Mancuso, Laura Di Magno, Giulia Sdruscia, Simona Manni, Silvia Maria Serrao, Dante Rotili, Eleonora Spiombi, Francesca Bufalieri, Marialaura Petroni, Monika Kusio-Kobialka, Enrico De Smaele, Elisabetta Ferretti, Carlo Capalbo, Antonello Mai, Pawel Niewiadomski, Isabella Screpanti, Lucia Di Marcotullio, Gianluca Canettieri
No abstract text is available yet for this article.
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28368412/noncanonical-gli1-signaling-promotes-stemness-features-and-in-vivo-growth-in-lung-adenocarcinoma
#8
A Po, M Silvano, E Miele, C Capalbo, A Eramo, V Salvati, M Todaro, Z M Besharat, G Catanzaro, D Cucchi, S Coni, L Di Marcotullio, G Canettieri, A Vacca, G Stassi, E De Smaele, M Tartaglia, I Screpanti, R De Maria, E Ferretti
Aberrant Hedgehog/GLI signaling has been implicated in a diverse spectrum of human cancers, but its role in lung adenocarcinoma (LAC) is still under debate. We show that the downstream effector of the Hedgehog pathway, GLI1, is expressed in 76% of LACs, but in roughly half of these tumors, the canonical pathway activator, Smoothened, is expressed at low levels, possibly owing to epigenetic silencing. In LAC cells including the cancer stem cell compartment, we show that GLI1 is activated noncanonically by MAPK/ERK signaling...
August 10, 2017: Oncogene
https://www.readbyqxmd.com/read/28350519/outcome-of-lower-risk-patients-with-myelodysplastic-syndromes-without-5q-deletion-after-failure-of-erythropoiesis-stimulating-agents
#9
Sophie Park, Jean-François Hamel, Andrea Toma, Charikleia Kelaidi, Sylvain Thépot, Maria Diez Campelo, Valeria Santini, Mikkael A Sekeres, Enrico Balleari, Jennifer Kaivers, Rosa Sapena, Katharina Götze, Catharina Müller-Thomas, Odile Beyne-Rauzy, Aspasia Stamatoullas, Ioannis Kotsianidis, Rami Komrokji, David P Steensma, Jaime Fensterl, Gail J Roboz, Teresa Bernal, Fernando Ramos, Marisa Calabuig, Agnès Guerci-Bresler, Dominique Bordessoule, Pascale Cony-Makhoul, Stéphane Cheze, Eric Wattel, Christian Rose, Norbert Vey, Daniela Gioia, Dario Ferrero, Gianluca Gaidano, Giovanni Cametti, Fabrizio Pane, Alessandro Sanna, Ulrich Germing, Guillermo F Sanz, François Dreyfus, Pierre Fenaux
Purpose Most anemic patients with non-deleted 5q lower-risk myelodysplastic syndromes (MDS) are treated with erythropoiesis-stimulating agents (ESAs), with a response rate of approximately 50%. Second-line treatments, including hypomethylating agents (HMAs), lenalidomide (LEN), and investigational drugs, may be used after ESA failure in some countries, but their effect on disease progression and overall survival (OS) is unknown. Here, we analyzed outcome after ESA failure and the effect of second-line treatments...
May 10, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28315969/time-takes-space-selective-effects-of-multitasking-on-concurrent-spatial-processing
#10
Timo Mäntylä, Valentina Coni, Veit Kubik, Ivo Todorov, Fabio Del Missier
Many everyday activities require coordination and monitoring of complex relations of future goals and deadlines. Cognitive offloading may provide an efficient strategy for reducing control demands by representing future goals and deadlines as a pattern of spatial relations. We tested the hypothesis that multiple-task monitoring involves time-to-space transformational processes, and that these spatial effects are selective with greater demands on coordinate (metric) than categorical (nonmetric) spatial relation processing...
August 2017: Cognitive Processing
https://www.readbyqxmd.com/read/28276480/selective-targeting-of-hdac1-2-elicits-anticancer-effects-through-gli1-acetylation-in-preclinical-models-of-shh-medulloblastoma
#11
Sonia Coni, Anna Barbara Mancuso, Laura Di Magno, Giulia Sdruscia, Simona Manni, Silvia Maria Serrao, Dante Rotili, Eleonora Spiombi, Francesca Bufalieri, Marialaura Petroni, Monika Kusio-Kobialka, Enrico De Smaele, Elisabetta Ferretti, Carlo Capalbo, Antonello Mai, Pawel Niewiadomski, Isabella Screpanti, Lucia Di Marcotullio, Gianluca Canettieri
SHH Medulloblastoma (SHH-MB) is a pediatric brain tumor characterized by an inappropriate activation of the developmental Hedgehog (Hh) signaling. SHH-MB patients treated with the FDA-approved vismodegib, an Hh inhibitor that targets the transmembrane activator Smoothened (Smo), have shown the rapid development of drug resistance and tumor relapse due to novel Smo mutations. Moreover, a subset of patients did not respond to vismodegib because mutations were localized downstream of Smo. Thus, targeting downstream Hh components is now considered a preferable approach...
March 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28268748/electrosynthesis-of-magnetoresponsive-microrobot-for-targeted-drug-delivery-using-calcium-alginate
#12
Chengzhi Hu, Katharina Riederer, Michael Klemmer, Salvador Pane, Bradley J Nelson
Targeted drug delivery systems deliver drugs precisely to a specific targeted site inside the body, and can also release the drugs with controlled kinetics to prolong the efficacy of single dose administration. The advantageous properties of hydrogels make them attractive for use in the area of drug delivery. Calcium alginate is a pH sensitive hydrogel stable in acidic media and soluble in basic media. This enables the hydrogel to absorb and release aqueous solutions at certain ranges of pH values. By absorbing an aqueous solution containing a drug, an active drug release can be triggered at a specified range of pH value...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226936/electrosynthesis-of-magnetoresponsive-microrobot-for-targeted-drug-delivery-using-calcium-alginate
#13
Chengzhi Hu, Katharina Riederer, Michael Klemmer, Salvador Pane, Bradley J Nelson, Chengzhi Hu, Katharina Riederer, Michael Klemmer, Salvador Pane, Bradley J Nelson, Salvador Pane, Katharina Riederer, Bradley J Nelson, Michael Klemmer, Chengzhi Hu
Targeted drug delivery systems deliver drugs precisely to a specific targeted site inside the body, and can also release the drugs with controlled kinetics to prolong the efficacy of single dose administration. The advantageous properties of hydrogels make them attractive for use in the area of drug delivery. Calcium alginate is a pH sensitive hydrogel stable in acidic media and soluble in basic media. This enables the hydrogel to absorb and release aqueous solutions at certain ranges of pH values. By absorbing an aqueous solution containing a drug, an active drug release can be triggered at a specified range of pH value...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28222576/may-a-unitary-autonomic-index-help-assess-autonomic-cardiac-regulation-in-elite-athletes-preliminary-observations-on-the-national-italian-olympic-committee-team
#14
Roberto Sala, Mara Malacarne, Fabio Tosi, Manuela Benzi, Nadia Solaro, Stefano Tamorri, Antonio Spataro, Massimo Pagani, Daniela Lucini
BACKGROUND: Long term endurance training, as occurring in elite athletes, is associated to cardiac neural remodeling in favor of cardioprotective vagal mechanisms, resulting in resting bradycardia and augmented contribution of cardiac parasympathetic nerve activity. Autonomic assessment can be performed by way of Heart Rate Variability. This technique however provides multiple indices, and there is not yet complete agreement on their specific significance. Purpose of the study was to assess whether a rank transformation and radar plot could provide a unitary autonomic index, capable to show a correlation between intensity of individual work and quality of autonomic regulation...
February 21, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28199051/boosting-bifunctional-oxygen-electrolysis-for-n-doped-carbon-via-bimetal-addition
#15
Jian Wang, Francesco Ciucci
The addition of transition metals, even in a trace amount, into heteroatom-doped carbon (M-N/C) is intensively investigated to further enhance oxygen reduction reaction (ORR) activity. However, the influence of metal decoration on the electrolysis of the reverse reaction of ORR, that is, oxygen evolution reaction (OER), is seldom reported. Moreover, further improving the bifunctional activity and corrosion tolerance for carbon-based materials remains a big challenge, especially in OER potential regions. Here, bimetal-decorated, pyridinic N-dominated large-size carbon tubes (MM'-N/C) are proposed for the first time as highly efficient and durable ORR and OER catalysts...
February 15, 2017: Small
https://www.readbyqxmd.com/read/28172957/reduced-stress-granule-formation-and-cell-death-in-fibroblasts-with-the-a382t-mutation-of-tardbp-gene-evidence-for-loss-of-tdp-43-nuclear-function
#16
Sandro Orrù, Paola Coni, Andrea Floris, Roberto Littera, Carlo Carcassi, Valeria Sogos, Carla Brancia
No abstract text is available yet for this article.
October 15, 2016: Human Molecular Genetics
https://www.readbyqxmd.com/read/28026860/pioglitazone-together-with-imatinib-in-chronic-myeloid-leukemia-a-proof-of-concept-study
#17
Philippe Rousselot, Stéphane Prost, Joelle Guilhot, Lydia Roy, Gabriel Etienne, Laurence Legros, Aude Charbonnier, Valérie Coiteux, Pascale Cony-Makhoul, Francoise Huguet, Emilie Cayssials, Jean-Michel Cayuela, Francis Relouzat, Marc Delord, Heriberto Bruzzoni-Giovanelli, Laure Morisset, François-Xavier Mahon, François Guilhot, Philippe Leboulch
BACKGROUND: We recently reported that peroxisome proliferator-activated receptor γ agonists target chronic myeloid leukemia (CML) quiescent stem cells in vitro by decreasing transcription of STAT5. Here in the ACTIM phase 2 clinical trial, we asked whether pioglitazone add-on therapy to imatinib would impact CML residual disease, as assessed by BCR-ABL1 transcript quantification. METHODS: CML patients were eligible if treated with imatinib for at least 2 years at a stable daily dose, having yielded major molecular response (MMR) but not having achieved molecular response 4...
May 15, 2017: Cancer
https://www.readbyqxmd.com/read/28026124/cobalt-nickel-layered-double-hydroxides-modified-on-tio2-nanotube-arrays-for-highly-efficient-and-stable-pec-water-splitting
#18
Weijian Chen, Taotao Wang, Jiawei Xue, Shikuo Li, Zidan Wang, Song Sun
TiO2 -based photoanodes have attracted extensive attention worldwide for photoelectrochemical (PEC) water splitting, but these materials still suffer from poor electron-hole separation and low photoconversion efficiency. Here, the high PEC water splitting activity and long-term stability against photocorrosion of well-aligned hierarchical TiO2 @CoNi-layered double hydroxides nanotube arrays (TiO2 @CoNi-LDHs NTAs) are reported. The typical TiO2 @CoNi-LDHs NTAs exhibits enhancing photocurrent density of 4.4 mA cm(-2) at a potential of 1...
December 27, 2016: Small
https://www.readbyqxmd.com/read/27918124/hierarchical-coni-sulfide-nanosheet-arrays-derived-from-layered-double-hydroxides-toward-efficient-hydrazine-electrooxidation
#19
Lei Zhou, Mingfei Shao, Cong Zhang, Jingwen Zhao, Shan He, Deming Rao, Min Wei, David G Evans, Xue Duan
A hierarchical CoNi-sulfide nanosheet array is fabricated via an in situ reduction of CoNi-layered double hydroxide (LDH) nanosheets, then a vulcanization process. The material inherits the morphology of the LDH precursor, consisting of well-distributed CoNi-alloy@CoNi-sulfide nanoparticles with a core-shell structure, and demonstrates promising performance toward hydrazine electrooxidation.
December 5, 2016: Advanced Materials
https://www.readbyqxmd.com/read/27882467/are-there-keystone-mycorrhizal-fungi-associated-to-tropical-epiphytic-orchids
#20
Stefania Cevallos, Aminael Sánchez-Rodríguez, Cony Decock, Stéphane Declerck, Juan Pablo Suárez
In epiphytic orchids, distinctive groups of fungi are involved in the symbiotic association. However, little is known about the factors that determine the mycorrhizal community structure. Here, we analyzed the orchid mycorrhizal fungi communities associated with three sympatric Cymbidieae epiphytic tropical orchids (Cyrtochilum flexuosum, Cyrtochilum myanthum, and Maxillaria calantha) at two sites located within the mountain rainforest of southern Ecuador. To characterize these communities at each orchid population, the ITS2 region was analyzed by Illumina MiSeq technology...
April 2017: Mycorrhiza
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